CompTIA Security+ (SY0-501) — Question 366

A systems administrator wants to implement a wireless protocol that will allow the organization to authenticate mobile devices prior to providing the user with a captive portal login. Which of the following should the systems administrator configure?

Answer options

• A. L2TP with MAC filtering
• B. EAP-TTLS
• C. WPA2-CCMP with PSK
• D. RADIUS federation

Correct answer: D

Explanation

The correct option is D, RADIUS federation, as it allows for centralized authentication for mobile devices before accessing the network. The other options do not provide the same level of authentication integration required for a captive portal setup; for example, L2TP with MAC filtering is not a wireless protocol, and WPA2-CCMP with PSK does not involve user authentication prior to login.